KEY TO THE PYRUS 185 



* Fruit large, 1-6 inches, yellow or greenish yellow ; very aromatic, 



with 5 many-seeded cells. Quinces — Cydonia. (A.) 

 A. Stipules small ; shrubs or small trees to 15 feet ; cultivated for 

 fruit. (B.) 

 B. Leaves entire-edged ; flowers white or light pink (2 inches 



broad) ; fruit light yellow (2-4 inches broad). Common 



QniNCE — Pyrus vulg&,ris. 

 B. Leaves finely serrate ; flowers light pink ; fruit dark yellow, 



oblong (4-6 inches long). Hardy to Philadelphia and highly 



ornamental. Chinese QniNCE (283) — Pyrus (Cydbnia) 



sinensis. 



B. Leaves finely serrate ; flowers about single, large, white ; 

 fruit when ripe (after frost) brown, round (1| inches 

 hroad), and with the top of the ovaries exposed. Hardy to 

 central New York. Medlak (284) — Pyrus (Mespilus) ger- 

 manica. 



A. Stipules large ; spiny shrubs under 6 feet high, cultivated for 

 ornament ; flowers in leafless clusters, March, April. Hardy 

 north. (C.) 



C. Shrub 3-6 feet ; flowers white, pink, scarlet, orange, etc. , 

 sometimes double. Japan or Flowering Quince (281) — 

 Pyrus (Cydonia) japonica. 



C. Shrub 1-3 feet ; flowers orange-scarlet ; foliage sometimes 

 variegated with pink and white. Dwakf Flowering Quince 

 (285) — Pyrus (Cydonia) Maulei. 



* Fruit ^-1 inch, usually very sour, red or red-cheeked, the cells of the 



fruit few-seeded. Crab Apples — Malus. (D.) 

 D. Leaves serrate but not lobed at end. Japan species. (E.) 



B. Flowers rose-colored in few-fiowered clusters ; spreading bush 

 or small tree. Kingo Crab — Pyrus Elngo. 



E. Flowers red in many-flowered clusters on red stems ; fruit 

 remaining through the winter. Kaido Crab — -Pyrus KMdo. 



D. Leaves coarsely serrate and often lobed at end. American 

 species ; usually trees. (F.) 



F. Flowers white (1 inch wide) blooming when leaves are grown. 

 Oregon Crab Apple — Pyrus fiisca. 



P. Flowers rosy-red, fragrant, blooming with the leaves. (G.) 

 G. Leaves broad, often lobed. "Wild or American Crab 



Apple — Pyrus coronSiria. 

 G. Leaves narrow, thick and not lobed. Narrow-leaved 

 Crab Apple (286) — Pyrus angustifblia. 



* Fruit small, size of peas, on long stems in umbels. Cherry Crab 



Apples from Asia — Malus. (H.) 



